Free Chemical Coordination And Integration (Daily Quiz: 4) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neurohormonal control system

(a) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex

(b) Hypothalamus actives the parasympathetic division of brain

(c) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex

(d) Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse.

Question-2

PTH is

(a) Peptide hormone

(b) protein hormone

(c) Biogenic amines

(d) Steroid

Question-3

Which statement regarding PTH is correct?

(a) It stimulates bone resorption.

(b) It is hypercalcemic hormone.

(c) It is a peptide hormone.

(d) All of the above.

Question-4

Hormones generally cause a response in a cell by

(a) binding with a receptor and stimulating protein production.

(b) interacting directly with the cell's DNA.

(c) changing the polarity of the cell membrane and causing a cascade of events within the cell.

(d) halting all other cellular activity except the required response

Question-5

Feeling the tremors of an earthquake a scared resident of seventh floor of a multistoryed building starts climbing down the stairs rapidly. Which hormone initiated this action?

(a) Glucagon

(b) Gastrin

(c) Adrenaline

(d) Thyroxine